"One of the nurses that helped she said she was like walking around pacing in the airport so they were thinking she was having contractions," Dafoe told Phoenix TV station KTVK.

"All of a sudden I heard a baby cry like a gurgling sound, like a baby that had too much milk or whatever and I'm like 'There's no babies on this flight,'" Reed said.

Passengers said they had heard the call for a doctor, but nothing about what the medical emergency was.

"The captain announced congratulations for the arrival of this new baby boy," another passenger Aarti Shahani told KTVK. "So we all started applauding, but it was confusing because we thought someone was going to die not be born."